Posted 09 February 2007 - 11:19 PM
If it is so easy every one would be doing it!
Nikon D 7000, Subal Housing, Inon Z 240 strobes.
Posted 10 February 2007 - 05:51 AM
So that would suggest to me that a Blue Ring Octopus would be able to change colours and hide its blue rings ... similarly to other octopus changing colour.
even though there is only one blue ring .. I would think that it is a Blue Ring Octopus .. if there are different types .. i wouldn't be able to do any latin stuff.
Posted 10 February 2007 - 06:09 AM
I also have a pair of shots from Lembeh of one, found by KBR's Ben (divemaster) at site TK2. Very cool :-)
Posted 10 February 2007 - 12:04 PM
Giles is right about the blue ring octopus only showing the rings under stress or harassment. Lots of people complain about never seeing one but they probably have. Normal coloration is plain brown so these small octopuses are easily overlooked.
Posted 10 February 2007 - 03:00 PM
Here are two photos of the same B.R.O. - one while he's trying to blend in with the sand, and the other when he decided I needed a more obvious "warning". Note that in each case the intensity of ALL his spots is the same.
Edited by bmyates, 10 February 2007 - 03:41 PM.
Canon 5DMkII in Aquatica, 1DsMkII in Seacam, G9 in OEM...Inon Z240's...too many lenses
"If at first you don't succeed, try, try again. Then quit. No use being a damned fool about it." WC Fields
Posted 11 February 2007 - 12:51 AM
I love octopus .. they are cool .. and these guys are awesome to me .. even more so than the mimic .. i love funky colours and poisonous creatures .. i'm interested to know more about the Poison Ocellate ... pacific creatures rock .. but then i am happy that most things in the Caribbean are almost always harmless (he says after having been hit in the summer by a box jelly)
Posted 11 February 2007 - 06:25 PM
I think the octopus in Okuma's shot is the same as what we see in the footage (and the same as what I saw... sorry, I haven't scanned my slides yet or I'd post it). The one I saw was quite relaxed and did not display the distinctive striped pattern shown in some of the videos. The following says the armspan reaches 50cm, which is about the size I remembered seeing, and some individuals have two ocelli on each side (the one in my image(s) has two, just checked):
I'd be willing to bet a drink or two that it is Octopus mototi or a very close facsimile. Mind you, I'd probably be happier losing the bet than winning :-)
Posted 14 February 2007 - 10:55 AM
My shots can be found at http://www.vibrantse...s4_anilao21.htm and http://www.vibrantse...s9_anilao21.htm.
Posted 14 February 2007 - 07:37 PM
I'm going with "Octopus siamensis or mototi" until we hopefully find something that describes the difference between the two.
Well they are are beautiful and very unique animals and I feel privileged to have seen one regardless of what we call it.
Posted 15 February 2007 - 09:34 AM
I'd go with O. siamensis. As the top expert on cephalopods for that part of the world Mark Norman knows more about the species & their distributions than anyone. Don't forget it's not uncommon for more than one species to have the same color pattern even when they occur in different parts of the world.
Posted 09 May 2008 - 06:32 PM
It was said that PNG could not have Hippocampus Colmani, since a book said it was outside their range. I have clearly seen it in PNG, however.
I saw this photo (not mine) and it appears to be mototi. It was taken in Sulawesi.
Check out this link and let me know what you think.
Edited by AllisonFinch, 09 May 2008 - 06:48 PM.
Posted 11 May 2008 - 10:49 AM
The problem as I see it is the difficulty of making a reliable id from photographs. Lots of things are undescribed or they're described but no one knows what they look like in life, or many different species look similar (like all these 2-spot octopuses with stripes). Another problem is that many web images are mis-identified so if you compare a photo to one on the web you could be misled.
I tend to be conservative & if I have something written by an expert I'll follow that. As it is I use waffle-ly statements like "seems to be", "looks like", "similar to this photo called X" instead of saying "it is speciesX". Not being really knowledgeable about anything but worms also keeps me cautious about ids.
It could certainly be mototi but honestly, as variable as octopus species are, I can't see an external species level difference based on the images. (Of course that could be the result of my own octo-ignorance.) The difference between mototi & siamensis may be internal or something on the underside like the arrangement of suckers. Jeff's photo was given a name by Mark Norman so I trust that id more than another. And did you notice that Jeff's critter also represented a range extension from what's reported in books?
It would be great if Kuiter would confirm the presence of Hippocampus pontohi in PNG. In his description of H pontohi Kuiter did say there was a similar undescribed species in PNG but he didnt' mention how they differed or even if they can be distinguished on external characters. So I'm cautious.
Posted 11 May 2008 - 11:06 AM
Posted 13 May 2008 - 07:29 PM
Here is his baby picture?????, KBR - May 2006
The Mototi octopus in the OP has been seen in Lembeh Straits when I was there in June-July 2007. Got some great shots of it too!. The Guides were going bonkers when they found it. It is a beautiful little octopus. This is the one I saw in Lembeh in June 2007.
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Posted 23 May 2008 - 09:42 PM
Edited by Graham Abbott, 23 May 2008 - 10:31 PM.